Husband cleaned cast iron pan with sand paper. Took off a lot of the black 'paint' finish that comes on new pans. Now if I wipe it black rubs off. How do
![Bottom of cast iron black crust is starting to flake off? Had been building up but now is coming off with little bits in food. Anyone know why? : r/ castiron Bottom of cast iron black crust is starting to flake off? Had been building up but now is coming off with little bits in food. Anyone know why? : r/ castiron](https://preview.redd.it/qj4fq8tsi2o41.jpg?auto=webp&s=291bfb9c51f3f675584c1a146398de46a9ae2b04)
Bottom of cast iron black crust is starting to flake off? Had been building up but now is coming off with little bits in food. Anyone know why? : r/ castiron
![My cast iron leaves little black specs on food. How do I fix this and how do I prevent it in the future? : r/castiron My cast iron leaves little black specs on food. How do I fix this and how do I prevent it in the future? : r/castiron](https://preview.redd.it/n2j5f0a5dz491.jpg?auto=webp&s=f3c505b0c8a9485f3d63a4d6689826ff8cf79977)